Otto Bock 4R57-WR Instructions For Use Manual page 26

6.2 Mounting the adapter
6.2.1 Rotation adapter with pyramid adapter
The pyramid adapter of the rotation adapter is fixed to the pyramid receiver
with the set screws of the proximal prosthetic component. All four set screws
of the rotation adapter have to be unscrewed for replacement or disas­
sembly. The adjustment possibilities for static corrections in this area are
minor.
INFORMATION
Deviating from the specification in the corresponding instructions for use of
the proximal prosthetic component, the set screws of the prosthetic com­
ponent must be tightened to a maximum of 10 Nm.
The following points have to be observed during assembly:
• The alignment of the release button must be medial.
• After activating the release button, it must be possible to rotate the hous­
ing of the rotation adapter 360° without touching the socket and/or com­
ponents of the knee joint (such as the frame or hydraulic unit).
• A collision with the frame or hydraulic unit at maximum flexion of the knee
joint must be prevented. If necessary, flexion stops have to be installed
or a tilt of the rotation adapter has to be eliminated.
Fitting:
► Use the torque wrench to tighten the set screws of the pyramid receiver
to 10 Nm.
Definitive mounting:
1) Secure the set screws of the pyramid receiver with adhesive.
2) Use the torque wrench to tighten the set screws to 10 Nm.
6.2.2 Rotation adapter with threaded connector
CAUTION
Insufficient screw-in depth in the lamination anchor
Falling due to breakage of load-bearing components.
► After fully screwing the rotation adapter into the lamination anchor,
unscrew the rotation adapter out of the thread by no more than
3/4 turn.
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